Improvement of electrical features of SnO2 based varistor doped with Al2O3

One of the important objectives of the varistor is for a sustainable environment and reduce the pollution resulting from the frequent damage of the electrical devices and power station waste. In present work, the influence of Al2O3 additives on the non –linear electrical features of SnO2 varistors,...

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Bibliographic Details
Main Authors: Abdul-Ridha, Zainab S., Al-Jasim, Ali A. N., Radam, Ali O.
Format: Conference Proceeding
Language:English
Subjects:
Additives
Aluminum oxide
Ceramic powders
Electronic devices
Energy absorption
Leakage current
Power plants
Sintering (powder metallurgy)
Tin dioxide
Varistors
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Summary:One of the important objectives of the varistor is for a sustainable environment and reduce the pollution resulting from the frequent damage of the electrical devices and power station waste. In present work, the influence of Al2O3 additives on the non –linear electrical features of SnO2 varistors, has been investigated, where SnO2 ceramic powder doped with Al2O3 in three rates (0.005, 0.01, and 0.05), the XRD test improved that SnO2 is the primary phase, while CoCr2O4, and Al2O3 represent the secondary phases. The electrical tests of all prepared samples confirmed that the increasing of Al2O3 rates and sintering temperature improves and increase the electrical features, where the best results obtained at Al2O3 (0.05) and 1000℃, the non-linear coefficient (49), energy absorption capability (3890Joul), and breakdown voltage (4040Volt), while the leakage current passes through the varistor decreased to the minimum value (41μA).
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5117024